Perkins 1106C Troubleshooting Manual page 182

182
Troubleshooting Section
C. Turn the keyswitch to the ON position. Access the
"Diagnostics Tests" on the electronic service tool.
Activate the "Turbo Wastegate Solenoid Test".
Wait at least 30 seconds in order for the result to
be displayed.
D. Check for active diagnostic codes on the electronic
service tool.
Expected Result:
Diagnostic code 526-5 is now active.
Results:
•
OK – Diagnostic code 526-5 is now active.
Repair: There is a short in the solenoid of the
wastegate regulator.
1. Temporarily connect a replacement wastegate
regulator.
2. If the fault is eliminated, reconnect the suspect
wastegate regulator. If the fault returns,
permanently install the replacement wastegate
regulator.
STOP.
•
Not OK – Diagnostic code 526-6 is still active.
Proceed to Test Step 7.
Test Step 7. Create an Open Circuit at the
ECM
A. Turn the keyswitch to the OFF position.
B. Remove the wires from P2:17 and P2:44 in order
to create an open circuit at the ECM.
C. Turn the keyswitch to the ON position. Access the
"Diagnostics Tests" on the electronic service tool.
Activate the "Turbo Wastegate Solenoid Test".
Wait at least 30 seconds in order for the result to
be displayed.
D. Check for active diagnostic codes on the electronic
service tool.
Expected Result:
Diagnostic code 526-5 is now active.
Results:
•
OK – Diagnostic code 526-5 is now active. There
is a short circuit in the harness between the ECM
and the wastegate regulator.
Repair: Repair the harness or replace the harness.
Use the electronic service tool in order to clear all
logged diagnostic codes and then verify that the
repair eliminated the fault.
STOP.
•
Not OK – Diagnostic code 526-6 is still present.
Repair: Perform the following procedure:
1. Temporarily connect a test ECM. Refer to
Troubleshooting, "Programming Parameters"
before replacing the ECM.
2. If the test ECM eliminates the fault, reconnect
the suspect ECM. If the fault returns,
permanently install the replacement ECM.
STOP.
KENR6933